Boiler for carbon-black retorts



' 1644152 OCt. 4" H.

BOILER FOR CARBON BLACK RETORTS Filed April 2'7. 1925 75 I I 1 M f/arry 1?. flayerd.

erratum:

$3" AA-x Patented Oct. 4, 1927.

UNITED STATES PATENT OFFICE.

HARRY R. ROGERS, OF DENVER, COLORADO, ASSIGNOR TO HARRY R. ROGERS, FRED B. -ROG ERS, AND WILLIAM A. SHARPE, ALL OF DENVER, COLORADO; LUCIAN THOMAS MARTIN, OF KANSAS CITY, MISSOURI; ALBERT LEE MILLER, LAWRENCEJ'OHN- SON AND LON A. GALBREATH, ALLOF LUSK, WYOMING, TRUSTEES 01 THE CON- BOLIDATED PRODUCERS TRUST, OF LUSK, WYOMING.

301mm non CARBON-BLACK an'ronrs.

Application 'flled April 27, 1925. v Serial No. 26,042.

Fig. 1 is a section taken on line 11,

Fig. 3; Fig. 2 is a section taken on hne 22,

Fig. 1

Fig. 3 is a section taken on hne 3-3, Fig. 1'

Fig. 4 is a section taken on line 44, Fig. 5; and

Fig. 5 is a sectlon taken on hne 5-5, Fig. 4.

A pipe 3 leads from a gasometer not shown to pipes 4 to the upper side of which the burner tips 5 are connected.

The volume of gas delivered to the burners is controlled by the valves 7 (F g. 2). Located above each pipe 4 1s a boiler 8. The boilers are arranged in airs and each pair is enclosed in a chamber ormed by s1de walls 10 and end walls 11 and 12. Each chamber or compartment is provided with a roof 13. As my invention resides in the construction of the boilers, I shall limitmy description more particularly to Flgs. 1 to 5 where the boilers have been illustrated w1th considerable particularity. A rectangular framework comprising side members 14, 15 and end members 16 rests upon suitable supports. Secured to the side member 14 are pillow blocks 18 within which is journalled the trunnions 19 that are secured to one end of each boiler 8. A worm-gear 20 is secured to each trunnion and this is engaged by a worm 21 that is secured to the shaft 22. The worms and worm gears of each pa1r are rights and lefts so that the boilers will be rotated in opposite directions. A motor 7 (not shown) drives the shaft 22 in such a direction that the boilers of each pair are rotated so that their upper surfaces move towards each other (Fig. 3). Secured to the beam 15 are cylinder heads 24 that are so constructed that they form supports and bearings for the other ends of t e boilers. The ends of the boiler opposite from the trunnions 19 have a tubular extension 25 that serve as trunnions. These extensions are electrowelded or otherwise secured to the end plates 26 of the boilers. The boiler heads or hearing members 24 have lugs 27 that are perforated for the reception of bolts 28 by means of which the heads 24 are secured to the beam 15. These cylinder heads have a portion 29 of their interior cylindrical and of the proper diameter to serve as a bearing for the cylindrical end 25 of the boiler. A member 30 is telescopically related to the enlarged part 31 and cooperates with the latter to form a packing box or gland, the packing material of which has been designated by numeral 32. By means of bolts 33 the packing can be compressed to any extent thereby tightening the joint so as to prevent leakage. A partition 34 extends transversely of the head so as to form a. wall that keeps the water from entering the-steam pipes 35. A feed water pipe 36 has its end 37 threadedly secured to the walls of an opening in the end of the cylinder head. Pipe 36 projects through a hole in the partition 34 and extends into the boiler where its end is curved downwardly as indicated by numeral 38. Pipes 39 and 40 are connected respectively to the upper and lower side of the head 24. -A water glass 41 connects the pipes 39 and 40 and serves as the means for indicating the water level. The pipes 39 and 40 extend to and are connected with an automatic feedwater mechanism that has not been shown as it has nothing to do with my invention. The level of the water in the boiler should be kept below the pipe 36, approximately in the position indicated by the dotted line 42. As the steam is generated, it passes over the top of the partition 34 and thence to the pipes 35 which lead to the engine or other device in which it is employed. When the plant is in operation the boilers are rotated by means of the motor, the boilers of each pair rotating in opposite directions with their up er surfaces moving towards each other. 'Fh

e scrapers 43 remove the carbon black from the outer surfaces of the boilers and direct the same into the conveyors 44 where the screws 45 convey it to the chute 451 that extends to a packer.

The apparatus described above is very well adapted for the pur ose for which it is designed as a good gra e of carbon black is produced and a large amount of steam generated. The rotating boilers are especially well adapted for the production of carbon black as they are continually presenting clean surfaces to the action of the flame. The fact that such an exceptionally good grade of carbon black is obtained by means of my apparatus is due to the fact that the cylinders upon the surface of which the carbon black is deposited is water cooled and rotates, The water cooling produces a quicker and more uniform depositin of the carbon black and this appears to a ect the quality of the product. The water cooling itself is, however,- not wholly responsible for the quality of the productas this is due in part tothe fact that a clean surface is continually being presented to the flame.

I wantto call particular attention to the transverse wall. 34 which forms a com artment near the closed end of the cylinder head. This wall permits the steam pipe 35 to open directly into this compartment as it prevents the Water from entering. This transverse wall also forms a support for the feed Water pipe 36.

Having now described my invention what I claim as new is:

A boiler comprising a hollow cylindrical member having one end closed and a trunnion projecting axially from said closed end, the other end of said cylinder having an axial tubular projecting member of smaller diameter than the cylindrical member, a

cylinder head operatively associated with the tubular member, said cylinder head having a transverse Wall near one end so as to form a compartment, a steam pipe opening into said compartment means for forming a ti ht connection between said head and tubu ar member and a feed Water pipe extending into said compartment and through an openin in said partition wall.

In testimony whereof I affix m HARRY R.

si 'nature. 

